[LRflex] Was a bunch of stuff, now Dark Desert Clothes
- From: "Aram Langhans" <leica_r8@xxxxxxxxxxx>
- To: leicareflex@xxxxxxxxxxxxx
- Date: Sun, 26 Nov 2006 09:41:45 -0800
Sorry, I am behind in reading. Maybe someone already said this.
I read an article long ago about dark desert clothes. It seems that the
dark clothes absorb the light and get hot, and this heat cause the air
inside the clothes, which are loose fitting robes, to get and hot and rise.
This draws in cooler air underneath and creates a sort of air conditioning
system - convective cooling. Of course it does not work with a black three
piece suit.
I'll continue to read further before I comment on the black egg...
Aram
>From: Philippe Amard <phamard@xxxxxxxxxxxxxx>
>Reply-To: leicareflex@xxxxxxxxxxxxx
>To: leicareflex@xxxxxxxxxxxxx
>Subject: [LRflex] Re: Was: Comparison of M8 Photos in Infra-Red - is now
>"rubbish?"
>Date: Tue, 21 Nov 2006 21:27:22 +0100
>
>Hi Tom,
>may I maintain that dark wolour transfer heat (or cold) faster?
>This is science, not me.
>Hence plenty of applications in the real world, your example is just one
>in many.But when the bag gets hot, it takes much longer to cool down,
>that's the downside of it.
>BTW why do you think the people in the Sahara desert dress in dark clothes?
>They must have had time to have "hands-on-experience", long before
>scientists got any interest in that.
>Yours
>Phil
>PS: B&W whisky is a perfect balance of both worlds. ;-)
>
>
>
>Thomas Schofield wrote:
>
> >I thought black v. white for heat transfer only
> >applied to sunlight, not to two different color items
> >in a covered, boiling pot, but i can't say I've tried
> >your experiment. White reflects sunlight, black
> >absorbs it. Zone VI made their camera bag white for
> >this reason.
> >
> >Tom
> >
> >--- Philippe Amard <phamard@xxxxxxxxxxxxxx> wrote:
> >
> >
> >
> >>David Young wrote:
> >>
> >>
> >>
> >>>blacks absorb heat (more than, say, white)
> >>>
> >>>
> >>>
> >>>
> >>Phil jesting and of course, off course, of topic -
> >>please delete before
> >>reading.
> >>
> >>Breakfast:
> >>Have you ever tried painting an egg black and
> >>boiling it with a white egg?
> >>Which is ready first?
> >>Depends on altitude? Nope!
> >>
> >>Dark colours tranfer heat much faster than light
> >>ones (both ways by the
> >>way, i.e. in/out) - Black egg will be ready first,
> >>and cold first -
> >>think of it when buying a car, or a Leica.
> >>This was just to show off how scientific I can get
> >>on the aftermath of
> >>my birthday when I got (thank you ever so much
> >>David) a new autofocus,
> >>stabilized Leica zoom.
> >>
> >>Cheers
> >>Phil (so delighted at the prospect that David can
> >>post more beautiful
> >>shots soon)
> >>
> >>------
> >>Unsubscribe or change to/from Digest Mode at:
> >> http://www3.telus.net/~telyt/lrflex.htm
> >>Archives are at:
> >> //www.freelists.org/archives/leicareflex/
> >>
> >>
> >>
> >
> >
> >
> >
> >____________________________________________________________________________________
> >Sponsored Link
> >
> >Online degrees - find the right program to advance your career.
> >www.nextag.com
> >------
> >Unsubscribe or change to/from Digest Mode at:
> > http://www3.telus.net/~telyt/lrflex.htm
> >Archives are at:
> > //www.freelists.org/archives/leicareflex/
> >
> >
> >
>
>
>------
>Unsubscribe or change to/from Digest Mode at:
> http://www3.telus.net/~telyt/lrflex.htm
>Archives are at:
> //www.freelists.org/archives/leicareflex/
_________________________________________________________________
Get free, personalized commercial-free online radio with MSN Radio powered
by Pandora http://radio.msn.com/?icid=T002MSN03A07001
------
Unsubscribe or change to/from Digest Mode at:
http://www3.telus.net/~telyt/lrflex.htm
Archives are at:
//www.freelists.org/archives/leicareflex/
Other related posts:
